Wrong hour at the email listings (adds 1 hour to every mail received)

Hi. I’m having the following problem in general on several systems. On a laptop with windows 10 mailspring shows one me hour in the mail listing. On another pc with windows 11 and Arch Linux mailspring does the same, it adds one more hour to the listings. My computers are fine as far as time settings are concerned as well as my gmail calendars. I am using the latest version available as of september 2023. Any suggestions?